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"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 6585797 | Recirculating molten metal supply system and method The melter furnace includes a heating chamber (16), a pump chamber (18), a degassing chamber (20), and a filter chamber (22). The pump chamber (18) is located adjacent the heating chamber (16) and houses a molten metal pump (30). The degassing chamber (20... | 07/01/2003 |
| 5211555 | Melting apparatus and method A gas fired melting apparatus for particulate material. The melting apparatus has four successively connected vertically disposed sidewall members, a floor member and a roof member. These members define a cubic melting chamber for containing a freestandin... | 05/18/1993 |
| 4981285 | Gas-fired steelmelting apparatus Process and apparatus for the rapid efficient melting of solid ferrous metal scrap without direct exposure to water vapor, carbon dioxide, oxygen or oxygen-containing gases, using natural gas and/or other caloric gaseous fuels. The apparatus includes a fu... | 01/01/1991 |
| 4961776 | Cold hearth refining In the particular embodiments of the invention described in the specification, a hearth for melting and refining metal has a hearth bed with cooling pipes so that a skull of molten metal is formed and energy input devices are directionally controlled to p... | 10/09/1990 |
| 4781581 | Melting and holding furnace Melting and holding furnace in which melting (1) and holding (2) chambers are separated from one another, and are connected via openings (6). The holding chamber is designed to be deeper in order to receive the melt which flows out of the melting chamber ... | 11/01/1988 |
| 4773630 | Tank furnace for the metallurgical treatment of non-ferrous metals A tank furnace for the metallurgical treatment of non-ferrous metals, consisting of a refractory hearth in the form of an inverted arch disposed on perimetral plate assemblies which are able to move in order to compensate for hearth expansion, a containin... | 09/27/1988 |
| 4687438 | Shaft melting furnace for melting metals A shaft melting furnace for melting metals is proposed with an interior receiving the molten bath, a charging shaft for supplying the melting stock and a burner supplying heat to the latter. The charging shaft is funnel-shaped and passes into a melting zo... | 08/18/1987 |
| 4497658 | Compact precious metal furnace and recovery method A highly compact and efficient tilting crucible furnace and smelting method is disclosed for use in the direct smelting of a precious metal containing material. A furnace body having a refractory lined cavity which has a top opening is pivotally mounted o... | 02/05/1985 |
| 4444586 | Method of melting copper in a hearth melt-down furnace with roof burner system Copper is melted in a reverberatory furnace having a longitudinally extending hearth, a roof, side and end walls and having a burner system at one end wall thereof for providing at least one flame extending longitudinally through said furnace for heating ... | 04/24/1984 |
| 4401295 | Apparatus for treating molten metal An apparatus for treating a molten metal to a high quality by means of applying gas treating and filtration consecutively in a simple compact treating vessel. The vessel is divided into two parts, i.e., fluxing and filtration compartments, by a vertical p... | 08/30/1983 |
| 4396178 | Open-hearth furnace Oxygen is blown into an open hearth furnace beneath the surface of the molten metal through a jacketed tuyere, each tuyere angled toward the center of the furnace. A high volume of jacketing coolant is injected through two separate annular passageways aro... | 08/02/1983 |
| 4375885 | Reverberatory furnace A reverberatory furnace includes a reverberatory furnace body for melting metal and holding molten metal, having an opening well, an electromagnetic trough for transporting hot molten metal from the reverberatory furnace body upwardly and slantly, having ... | 03/08/1983 |
| 4358095 | Furnace The invention relates to reverberatory furnaces used to operate upon baths of light metals, non-ferrous metals and alloys thereof. Reduction of wear on furnace walls, of energy used during operation and of dross formation on the metal bath, is achieved by... | 11/09/1982 |
| 4347079 | Method of operating an open-hearth furnace Oxygen is blown into an open hearth furnace beneath the surface of the molten metal through a jacketed tuyere, each tuyere angled toward the center of the furnace. A high volume of jacketing coolant is injected through two separate annular passageways aro... | 08/31/1982 |
| 4200265 | Furnace for the melting and refining of copper A furnace for the melting and refining of raw copper and/or blister copper comprises a shaft furnace having a lock-chamber feeder for the material at the top of the shaft furnace and an opening into a hearth furnace in which the copper is refined. The sha... | 04/29/1980 |
| 4169584 | Gas injection apparatus Gas is injected into molten metal, such as aluminum, to purify the molten metal either of dissolved gases (degassing), or of dissolved solids such as magnesium ( "demagging"). The apparatus for accomplishing this injection contains two metallic bath chamb... | 10/02/1979 |
| 4106894 | Apparatus for heat treating fragmented materials Apparatus for heating elements broken up in small pieces wherein the pieces are loaded into baskets with solid vertical walls and perforated or porous bases, and are pushed in a continuous line into a tunnel to there introduce a hot gas which passes verti... | 08/15/1978 |
| 4032121 | Process for the production of iron from iron ores and apparatus for carrying out said process A process and apparatus for the production of iron from iron ores, in which the ore is being heated and reduced in a rotary kiln by a treatment with solid carbon and with flame gas flowing in a countercurrent, the reduced iron is being collected and overh... | 06/28/1977 |
| 4027862 | Metal melting furnace with alternate heating systems The upper structure of an aluminum melting furnace is constructed with supporting structure for a fossil fuel burner and supporting structure for electrically operated heating elements. The furnace may thus be operated with alternate heating systems, one ... | 06/07/1977 |
| 3999977 | Method for controlling the injection of flux into a steelmaking vessel as a function of pressure differential This invention is directed to a method and apparatus for controlling the injection of flux into a steelmaking vessel as a function of the differential pressure between the flux containing tank and the main conduit which supplies oxygen to the tuyeres of t... | 12/28/1976 |
